Power-up and power-down management method of hybrid electric vehicle

Abstract

The invention provides a power-up and power-down management method of a hybrid electric vehicle (HEV), belonging to the hybrid electric vehicle. In a power-up and power-down process, four states, power up, normal, power down and idle states, are available; and whether the power-up and power-down process enters each state according to corresponding conditions. Thus, reliable control over the power-up and power-down process of the hybrid electric vehicle is realized, and the power-up and power-down process is safer.

Description

technical field [0001] The invention belongs to a hybrid electric vehicle (Hybrid Electric Vehicle, HEV), and relates to the power-on and power-off control of the HEV, in particular to power-on (Power up), normal (Normal), power-off (Power down) and waiting (Idle) in the process of power-on and power-on. ) The power on and off management method of four states. Background technique [0002] As people pay more and more attention to the protection of the environment and the effective and rational use of energy, major automobile manufacturers are researching various alternatives to fuel-engined vehicles, such as electric vehicles. But the current battery technology problems still hinder the large-scale application of electric vehicles. Since the energy density of batteries is hundreds of times lower than that of gasoline, it is far from the value required by people. Experts estimate that electric vehicles will not be able to replace fuel engine vehicles within 10 years. As a t...

AI Technical Summary

Problems solved by technology

In hybrid electric vehicles, if the power on and off process is realized by the power on and off method used by ordinary fuel engine vehicles, especially in the process of power off, it is difficult to achieve reliable control of power off, which will affect the safety of hybrid electric vehicles sex

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